add github CI

Author: Ivan Dlugos

.github/workflows/test.yaml

@@ -0,0 +1,37 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Test
+on: [ push, pull_request ]
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        os: [ ubuntu, windows, macos ]
+        python: [ 3.4, 3.5, 3.6, 3.7, 3.8 ]
+
+        # Python v3.4 is not available on macos and windows
+        exclude:
+          - os: macos
+            python: 3.4
+          - os: windows
+            python: 3.4
+
+    runs-on: ${{ matrix.os }}-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python ${{ matrix.python }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Prepare environment
+        run: |
+          python -m pip install --upgrade pip
+          pip install virtualenv
+
+      - run: make depend
+      - run: make test